Related Questions

তড়িৎ রাসায়নিক কোষের emf = ?i. E° Anode(ox) + E°Cathode (Red) 11. E Cathode(Red) - E°Anode (Red) 111. E° Anode(ox) - E°Cathode (Red) নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
Fe(s) |Fe2+ (aq) || Br2 (l) ; Br- (aq)| Pt(s) তড়িৎ রাসায়নিক কোষের সঠিক কোষ-বিক্রিয়া কোনটি? (Which one is the correct cell reaction of the given electrochemical cell?)
A Fe+Br2→Fe2++2Br-
B Fe+2Br-→Fe2++2Br2
C Fe2++Br2→Fe+2Br-
D Fe+Br2→Fe3++2Br-
Fes|Fe2+aq∥Br2I; Br-aq| pts তড়িৎ রাসায়নিক কোষের সঠিক কোষ-বিক্রিয়া কোনটি? (Which one is the correct cell reaction of the given electrochemical cell?)
A Fe+Br2→Fe2++2Br
B Fe+2Br-→Fe2++Br2
C Fe2++Br2→Fe+2Br
D Fe+Br2→Fe3++2Br
A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be
A $$\frac{2}{3}$$
B $$\frac{3}{2}$$
C $$\frac{5}{8}$$
D $$\frac{8}{5}$$
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :
A Power transmittor
B Battery
C Uninterrupted power supply (UPS)
D Generator
What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?
A Cl2 & Na
B Cl2 & H2
C O2 & H2
D Cl2, H2 & NaOH solution
Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and
A Moving mercury and graphite
B Graphite and moving mercury
C Moving mercury and carbon
D Moving mercury and crimped steel wire
Electrochemical corrosion can occur, only if __________ is present in contact with metal.
A Air
B Oxygen
C Liquid medium
D Gaseous medium
The deterioration of a metal by an electrochemical process is commonly termed as
A Erosion
B Corrosion
C Passivation
D Abrasion
The battery is an electrochemical device, which means battery
A Makes chemicals by mechanical means
B Uses chemical action to provide electricity
C Has curved plates instead of flat plates
D Does not use an electrolyte

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